Loose-leaf book.



N0. 777,900. PATENTED DEC. 20, 1904 W. E. JENKINSON. LOOSE LEAF BOOK.

APPLICATION FILED JAN.14, 1903.

NO MODEL.

UNITED STATES Patented December 20, 1904.

PATENT OFFICE.

LOOSE-LEAF BOOK- SPECIFICATION forming part of Letters Patent No.777,900, dated December 20, 1904.

Application filed January 14, 1903. Serial No. 138,965.

To all whom it may concern.-

Be it known that LVVILLIAM E. J ENKINSON, a citizen of the UnitedStates, residing at Fort Wayne, in the county of Allen and State ofIndiana, have invented certain new and useful Improvements in Loose-LeafBooks; andIdo declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference beinghadto the accompanying drawings, and to the characters of reference markedthereon, which form a part of this specification.

My invention relates to improvements in loose-leaf books; and the objectof my improvement is to afford a lock for securing the leaves ofloose-leaf books which will allow the removal of any one or all or anynumber of leaves at a time.

I accomplish my object by my construction illustrated in theaccompanying drawings, in which- Figure 1 is a longitudinal view showingthe openside of myloose-leaf holder. Fig. 2 is a plan of the top of theholder, showing thearrangement of the actuating-bars. Fig. 3 is a planof the lower portion of the holder. Fig. 4 is an enlarged view showing across-section through the holder and the attached covers on the line X Xof Figs. 1 and 2. Fig. 5 is an enlarged detail, in longitudinal section,showing the locking device in one end of the holder. Fig. 6 is anenlarged detail plan showing the manner of operating the actuating-bars.Fig. 7 is adetail elevation showing one of the extensibleguide-posts onan enlarged scale. "Fig. 8 is a cross-section atY Y of Fig. 7 Fig. 9 isa plan showinga plate for attachment on the guide-post, and Fig. 10 is aa detail elevation of the guide-post in a plane V at right angles tothat of Fig. 8.

Similar characters of reference indicate corresponding parts throughoutthe several views, and referring now to the same, 1 is the upper portionof the holder and is arranged to telescope the lower portion 2 of theholder, the two portions forming a case A, the one side of which is opento receive the leaves B. Secured in the said lower portion 2 near itsends are hollow posts 3. Each post 3 has a pawl 4c pivoted therein. Thesaid upper portion 1 has near its ends toothed arbors 5,which extendthrough the top thereof, and pinions 6 6 are mounted upon theirextending ends. A sliding bar 7, having bifurcated ends 8, is arrangedupon the top of the portion 1, the said ends 8 ranging astride thearbors 5 beneath the pinions 6. Racks 9 are secured to the ends of thebar 7, which racks engage with the pinions 6, respectively, and drivethe same when the said bar is moved lengthwise. manner the arbors arecaused to turn. hen the upper portion 1 is in place, the arbors 5 extendinto the hollow posts 3, and the pawls 41 exgage the teeth of the arbors5 and prevent the withdrawal of the said arbors from said posts. Thusthe portions 1 and 2 are locked together. Springs 10 are secured to thebottoms of the posts 3, and their upper ends rest against the backs ofthe pawls 4 and tend to hold the same into engagement with the teeth ofthe arbors. The said arbors are toothed only upon one side,and when innormal position the teeth are in line with said pawls, and when thearbors are turned the teeth are thereby disengaged from the pawls, andthe arbors may then be withdrawn from the posts 3. Coiled springs 11 areinterposed between the portions 1 and 2 and are arranged over the posts3. The said springs tend to hold the portion 1 in its uppermostposition. from the bottom of the lower portion 2, and similar pins 13depend from the top of the upper portion 1. The said pins 12 intervenethe pins 13.

1 1 represents adjustable guide-posts mounted upon the lower portion 2and consist each of two sections 15 and 16, the former being rigidlyfixed to the lower portion 2 and the latter being vertically adjustableupon the section 15. The arms of the section 16 intervene the arms ofthe section 15 and are fiush therewith, so that the diameter of the saidsections is uniform throughout.

19 represents hooks rigidly fixed at the tops of the respective sections16, and 17 represents guide-stems which are also rigidly fixed in saidsections 16 and pass loosely through holes 18 in the tops of thesections 15, and their lower ends are rigidly connected with the In thisPins 12 project upward lower inturned ends of the arms of the uppersections 16, as indicated by dotted lines in Fig. 7 Thus it will beunderstood that the upper sections are limited in their upwardmovements, because the lower ends of the guide-stems are thus connected,which will prevent them from being withdrawn through the holes 18.

A plate 20, having a slot 22, is attached to the top of the guide-post14 by placing said plate astride the hook 19, with its slot 22 engagingin the recesses 21, made in the sides of said hook. The hooks 19 areadapted to extend through the upper portion 1 and become engaged by thebar 23, whereby they are locked in connection with said upper portion.Thus when said hooks are engaged by the bar 23 said guide-posts limitthe upward movement of the upper portion.

A guard 24 is secured upon the top of the case A over the sliding bars 7and 23, and studs 25 project from said bars within said guard. Springs26 are arranged within said guard and, in connection with said studs tohold said bars in their normal positions, respectively. A key 27 isprovided to be inserted in the guard, which key is adapted to severallyengage the studs 25, and thus actuate the bars 7 and 23.

Covers 28 and 29 are secured to the portions 1 and 2 of the holder andare of a size suited to cover that portion of the leaves B which extendsexternal of the case A.

The leaves B have notches 30 in their edges to clear the pins 12 and 13and are also perforated, so as to lit over theguide-posts14.

In using my invention the portion of the holder 1 is removed by firstshifting the bar 7 by means of the key. thus disengaging the arbors 5from the pawls 4 and allowing the portion 1 to be lifted by the springs11 until the arbors are withdrawn from the posts 3 and the sections 16of the posts 14 are drawn up to their greatest extent. The bar 23 isthen shifted by means of the key, and thereby the hooks 19 of theguide-posts 14 are disengaged, and

said upper portion is thereby completely disconnected from the lowerportion and may then be laid aside. A suitable number of leaves B arethen placed in position upon the lower portion 2, the guide-posts 14extending through their perforations 31 and their notches rangingagainst the sides of the pins 12. Plates 20 are then attached to thetops of the guideposts 14 over the uppermost leaf, and the portion 1 isthen replaced, the pawls 4 engaging the teeth of the arbors 5 as thesaid portion 1 is pressed firmly downward. At the same time the hooks 19engage the bar 23. Thus the said leaves are held securely between thepertions 1 and 2. It is not necessary to completely disconnect the upperportion 1 when it is desired to remove or insert but a few leaves, inwhich case the upper portion 1 may be raised sufliciently for suchpurpose by shifting the bar 7 only, leaving the hooks 19 in connectionwith the said upper portion. Thus said upper and lower portions will beparted to an extent limited by the posts 14. The leaves may then beremoved or inserted in a manner which will be readily understood.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is

1. In a loose-leaf book, a case consisting of an upper and a lowerportion, one of said portions telescoping the other; locking mechanismin the ends of said portions to secure the same together; and verticallyadjustable guide-posts mounted upon said lower portion and having alocking connection with said upper portion whereby the vertical movementof said upper portion is limited.

2. In a loose-leaf book, a case consisting of an upper and a lowerportion, one of said portions telescoping the other; locking mechanismin the ends of said portions to secure the same together; pins securedto said upper and lower portions adjacent said locking mechanism, thepins of the former portion intervening those of the latter; andvertically-adjustable guide-posts mounted upon said lower portion andhaving a locking connection with said upper portion whereby the verticalmovement of said upper portion is limited.

In testimony whereof I aflix my signature in presence of two witnesses.

IVILLIAM E. J ENKINSON.

\Vitnesses:

W. G. BURNS, EMMA H. Porn.

